CVE-2006-4997
HIGHCVSS 7.5/10EPSS 4.60%
Last modified
CVE-2006-4997 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The clip_mkip function in net/atm/clip.c of the ATM subsystem in Linux kernel allows remote attackers to cause a denial of service (panic) via unknown vectors that cause the ATM subsystem to access the memory of socket buffers after they are freed (freed pointer dereference).. EPSS estimates a 4.60% chance of exploitation in the next 30 days.
Description
The clip_mkip function in net/atm/clip.c of the ATM subsystem in Linux kernel allows remote attackers to cause a denial of service (panic) via unknown vectors that cause the ATM subsystem to access the memory of socket buffers after they are freed (freed pointer dereference).
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 2.6.18 |
| Canonical | Ubuntu Linux | 5.10 |
| Canonical | Ubuntu Linux | 6.06 |
| Canonical | Ubuntu Linux | 6.10 |
| Redhat | Enterprise Linux | 2.1 |
| Redhat | Enterprise Linux | 3 |
| Redhat | Enterprise Linux | 4 |
References
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=206265Exploit, Issue Tracking
- https://secunia.com/advisories/22253Broken Link, Vendor Advisory
- https://secunia.com/advisories/22279Broken Link, Patch, Vendor Advisory
- https://secunia.com/advisories/22292Broken Link, Patch, Vendor Advisory
- https://secunia.com/advisories/22497Broken Link
- https://secunia.com/advisories/22762Broken Link
- https://secunia.com/advisories/22945Broken Link
- https://secunia.com/advisories/23064Broken Link
- https://secunia.com/advisories/23370Broken Link
- https://secunia.com/advisories/23384Broken Link
- https://secunia.com/advisories/23395Broken Link
- https://secunia.com/advisories/23474Broken Link
- https://secunia.com/advisories/23752Broken Link
- https://secunia.com/advisories/23788Broken Link
- https://secunia.com/advisories/24288Broken Link
- https://secunia.com/advisories/25691Broken Link
- https://securitytracker.com/id?1017526Broken Link, Third Party Advisory, VDB Entry
- https://support.avaya.com/elmodocs2/security/ASA-2006-249.htmThird Party Advisory
- https://support.avaya.com/elmodocs2/security/ASA-2006-254.htmThird Party Advisory
- https://support.avaya.com/elmodocs2/security/ASA-2007-078.htmThird Party Advisory
- https://www.redhat.com/support/errata/RHSA-2006-0689.htmlBroken Link, Patch
- https://www.securityfocus.com/archive/1/471457Broken Link, Third Party Advisory, VDB Entry
- https://www.securityfocus.com/bid/20363Broken Link, Third Party Advisory, VDB Entry
- https://www.ubuntu.com/usn/usn-395-1Third Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/29387Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=206265Exploit, Issue Tracking
- https://secunia.com/advisories/22253Broken Link, Vendor Advisory
- https://secunia.com/advisories/22279Broken Link, Patch, Vendor Advisory
- https://secunia.com/advisories/22292Broken Link, Patch, Vendor Advisory
- https://secunia.com/advisories/22497Broken Link
- https://secunia.com/advisories/22762Broken Link
- https://secunia.com/advisories/22945Broken Link
- https://secunia.com/advisories/23064Broken Link
- https://secunia.com/advisories/23370Broken Link
- https://secunia.com/advisories/23384Broken Link
- https://secunia.com/advisories/23395Broken Link
- https://secunia.com/advisories/23474Broken Link
- https://secunia.com/advisories/23752Broken Link
- https://secunia.com/advisories/23788Broken Link
- https://secunia.com/advisories/24288Broken Link
- https://secunia.com/advisories/25691Broken Link
- https://securitytracker.com/id?1017526Broken Link, Third Party Advisory, VDB Entry
- https://support.avaya.com/elmodocs2/security/ASA-2006-249.htmThird Party Advisory
- https://support.avaya.com/elmodocs2/security/ASA-2006-254.htmThird Party Advisory
- https://support.avaya.com/elmodocs2/security/ASA-2007-078.htmThird Party Advisory
- https://www.redhat.com/support/errata/RHSA-2006-0689.htmlBroken Link, Patch
- https://www.securityfocus.com/archive/1/471457Broken Link, Third Party Advisory, VDB Entry
- https://www.securityfocus.com/bid/20363Broken Link, Third Party Advisory, VDB Entry
- https://www.ubuntu.com/usn/usn-395-1Third Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/29387Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2006-4997?
The clip_mkip function in net/atm/clip.c of the ATM subsystem in Linux kernel allows remote attackers to cause a denial of service (panic) via unknown vectors that cause the ATM subsystem to access the memory of socket buffers after they are freed (freed pointer dereference).
How severe is CVE-2006-4997?
CVE-2006-4997 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 4.60% probability of exploitation in the next 30 days.
How do I fix CVE-2006-4997?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2006-4997?
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